All-new ZXi5 Irons represent our most potent blend of power, playability, and ultra-sharp looks. Our revolutionary i-FORGED process, combined with the latest Srixon ball speed and distance technologies, gives ZXi5 Irons unprecedented feel, speed, and power on every shot. i-FORGED Condensed Forging stretching from the high-toe area and along the topline of the Iron blade enhances overall strength, durability, and feel. Then the forged faces on ZXi5 are softened to improve this already exceptional feel. MAINFRAME MainFrame saves additional weight and adds more MOI through an enhanced network of milled channels on the back side of the Iron face. At impact, this system amplifies ball speed and adds forgiveness. TOUR V.T. SOLE Our Tour V.T. Soles proprietary combination of sole widths, bounce angles, and notches to ensure a smooth glide through fairway, rough, and sand without any loss of speed. PROGRESSIVE GROOVES The 3i-7i feature wider grooves, while the 8i-AW have deeper, closer-set grooves to ensure consistent spin across the set. Laser milling between each groove, on every loft, enhances adds bite on every strike. PLAYERS DISTANCE SHAPES ZXi5 features a slightly wider sole with moderate blade length and offset, giving attuned golfers enhanced distance, forgiveness, and workabilityall with an ultra-clean look at address.